Device for demonstrating the operation of reciprocating engines.



r s. BUTSUMYO. 'DEVICE'FOR DEMONSTRATING THE OPERATION OF RECIPROCATING ENGINES.

APPLICATION FILED DEC. 14, 1917.

Patented Jan. 28, 1919.

INVENTOR r J I I H a I I. I a J V ATTORNEYS SATORU BUTSUMYO, OF OBRIEN, WASHINGTON.

DEVICE FOR DEMONSTRATING THE OPERATION OF RECIPROCATING ENGINES.

Specification of Letters Patent.

Patented Jan. 28, 1919.

Application filed December 14, 1917. Serial No. 207,094.

To all whom it may concern:

Be it known that I, SATORU BUTSUMYO, a subject of the Emperor of Japan, residing at OBrien, in the county of King and State of Washington, have invented certain new and useful Improvements in Devices for Demonstrating the Operation of Reciprocating Engines; and do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to toys and has for its object to provide toys of instruction, for use in families or schools, and more particularly to provide toys and instruments for teaching children the operation of engines and construction thereof.

With these and other objects in view, the invention consists of the construction, the combination and in details and arrangements and the drawings illustrate a form of the same.

Figure 1 is a side view, with parts in section.

Fig. 2 is a detail of a part of one wheel and the governor.

Fig. 3 is a sectional view of Fig. 2, and

Fig. 1 is a side view of parts shown in Fig. 2 from opposite side.

Like numerals on different views relate to like parts. 1 is an air chamber or receiving chamber for gaseous fluid under any desired pressure and is designed in this drawing to be supplied with pressure by the breath of the operator or other person blown through tubes 8, and 5 1 from a mouthpiece 53.

2 is a cylinder in which reciprocates a piston 3, which connects by wrist pin 25- with a driving rod 4:, the other end of which terminates in a yoke and journal box fastened by key 52 so as to ride freely about the main crank 31 of the driving shaft 28. On opposite ends of shaft 28 are fastened a balance wheel 6, and a similar wheel 6 for governing purposes, the latter removed from Fig. 1 to permit better showing of the parts, but the material portion of which is shown in Fig. 2. The shaft 28 is mounted in suitable boxes in the main frame 7. On shaft 28 adjoining the frame 7, on one side, is fixed a pinion 9, which meshes with a gear wheel 10. The latter rotates freely on a pintle29 fixed to frame 7, and gear wheel 10 carries affixed thereto a cam block 11 which operates against a loose roller 34 in the end of a regulating rod 5 which reciprocates freely supported by two yokes 22 and 15*, which yokes are affixed to frame 7 by extensions 22 and 15 respectively. A resilient rubber or other suitable spring 14 is fastened to a lug 26 on rod 5 and a lug 27 in the frame 7, the lug 27 also supporting part 15. This spring holds the rod 5 with suitable pressure against the face of the cam 11, so that as this turns the rod 5 is recip rocated.

A port 38 connects the chamber 1 with the cylinder 2 and a valve 19, fastened at 19, of leather or other suitable material tends normally to keep the port closed, but a lift plate 17 aflixed to a lever 17 on a pin or rod 23 is caused to press on lower side of the valve and permit the air pressure from chamber 1 to flow into cylinder 2 and force back the piston 3 and start the balance wheels revolving. The pin 23 in the cylinder 2 supports a link 16 or rocker, the other end of which carries the pin 24, the latter also supporting an auxiliary rod or link 13, which terminates in a yoke 37, the latter fitting slidably over the rod 5, but the movement on the rod 5 is limited by a check pin 36 in rod 5 and normally by the shoulder 12 of a latch lever 12, the latch 12 being mounted on a fulcrum pin 35 in the rod 5 and is also guided by'the yoke 15 on the upper end ofbracket 15.

An exhaust port 39 is provided in the base of the cylinder 2 and mounted on a hinge pin 21, is the base of the valve 20 of such weight that it tends normally to keep the port closed. The valve carries a wide upturned leaf 20 against which the lower end 18 of the lever 17 impinges as the top of link 16 is pressed forward by rod 13 as normally acted upon by the latch lever 12' and 12 and also as pressed forward raises valve 19, and as lever 13 is drawn backward by the pin 36 the lever 17 tips and 18 opens exhaust 39.

Balance wheel 6 has a solid hub 59, with a shoulder 33 protruding on its inner end, and between this shoulder and the frame and outside the plane of the face of the cam 11 is placed a check plate or eccentric, centrifugal governor disk 32, with a slotted opening 58 through which the shaft 28 revolves. Plate 32 also carries a flange or cam part 57 half way around the plate, which flange extends over the hub shoulder and rides thereon normally as pressed against the hub by a small spring 62 coiled about the bent rod which extends from the flange 57 and out in a guide hole 63 in the rim of the wheel 6 An additional weight is given to the plate and rod by a fixed ball 61, which serves also as a stop for the inner end of spring 62.

The latch lever 12 carries an oflset or flange on its end at 12 where the same is situated over the hub and flange of the cheek plate 32, and as the speed of the balance wheels becomes greater than is desired, and as may be predetermined by the resistance of the spring 6 2, then the weight 61 will be moved out by centrifugal force and the cheek plate and its flange 57 will rise from its position on the hub, and so press outward on the under side of the flange 12 on the end of the latch lever 12 raising such end until its other end 12 is pressed down below to the top lines of the rod 5 and yoke 87 whereupon the valve 19 will no longer be actuated to su ply more power, as the yoke 37 will slide ack over the tops of the rods 5 and 12 until such time as the speed has decreased and the governor ball 61 permits the cheek plate and its flange to take normal position when the weight of flange 12 on latch 12 will cause that end of latch to fall and cause the other end 12 to again rise and engage the. yoke 37, and again permit flow through the port 38 asthe valve 19 is raised. The rod 5 is constructed of. two twin plates or bars between which latch 12 rides freely, the plates of 5 being joined by rivets beyond such points, the rod 5 being solid.

As will be noted the construction of the eng ne is simple yet so resembling regular engines in commercial use, that children can be taught the principles of the operation, and being attractive, children will be caused to take much interest in studying the construction. In addition to such advantages it has great importance in the health and' physical development of children of operators thereof, as the furnishing the motive power with breath from the lungs, large inhalations will be made of air and the extent and power of the lungs and chests of the operators beneficially increased.

What I claim as new is:

1. A mechanism for obtaining power from the breath, and transmitting power from horizontal to rotary motion, having in combination a cylinder and piston, an air chest with a breath tube and a mouthpiece, and means for automatically controlling and regulating the supply of power to the device and automatically controlling the speed thereof.

. 2. A fluid pressure engine comprising in combination, a cylinder and a piston therein, a pressure chest having a mouthpiece by which pressure from the breath may be accumulated in said chest, inlet and outlet ports for said cylinder, self closing valves for said ports, a crank shaft connected to the piston and a device for alternately opening the valves operative by the shaft.

3. A fluid pressure engine comprising in combination, a cylinder and a piston therein, a pressure chest having a mouthpiece by which pressure from the breath may be accumulated in said chest, inlet and outlet ports for said cylinder, self closing valves for said ports, a crank shaft connected to the piston and a device for alternately opening the valves operative by the shaft, and means centrifugal means for automatically disconnecting'the valve opening device.

5. A fluid operated reciprocating engine comprising a cylinder and its piston, a crank shaft connected to the piston, a pressure chest, means adjustable over the mouth of an operator to supply breath pressure to said chest, self closing valves for the cylinder, a lever for alternately opening the valves, a latch link connected to said lever, and speed controlled means for operating and unlatching said link. 7 V

6. A demonstrating motor comprising a cylinder, its piston and a crank connected thereto, an air chest having a breath tube for the admission of fluid pressure, inlet and outlet valves for the cylinder, a rock lever and its shaft for alternately actuating the valves, a latch link connected to the rock-shaft, a cam driven by the crank shaft and a rod reciprocated thereby, whereby said latch link is actuated.

7 A motor comprising a cylinder, its piston and a crank connected thereto, an air chest having'a breath tube with a mouthpiece for the admission of fluid pressure, inlet and outlet valves for the cylinder, a rock lever and its shaft, a latch linkconnected to the rock-shaft for alternately actuating the valves, a cam driven by the crank shaft and a rod reciprocated thereby, whereby said latch link is actuated, and speed controlled means engageable With and disengageable from said link to prevent ating the valves, a latch link connected to opening of the valves. the rock-shaft, a cam driven by the crank 10 8. A motor comprising a cylinder, its shaft and a rod reciprocated thereby, Wherepiston and a crank connected thereto, an air by said latch link is actuated, and speed conchest having a breath tube With a mouthtrolled means for disconnecting the link to piece for the admission of fluid pressure, prevent opening of the valves. inlet and outlet valves for the cylinder, a In testimony whereof I aflix my signature. 15 rock lever and its shaft for alternately actu- SATORU BUTSUMYO.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

